| OCR Text |
Show INTRODUCTION research has Although oonsiderable iost,ability shows up .combus t Lon of the oscillations other end of the some t shows it In its mildest Ime s result up in as form, low amplitude periodic, as in recent problem in the a chamber pressure.. combustion spectrum, that fluctuations be propellant rockets. solid of development to combustion continues unstable years been done At extreme fai.lure of the pressure the rocket case. increased emphasis The of the encouraged study ture has been Articles-of Price what (1,2) is of the known and the are a development has l.arge volume of litera excellent Several Working Group (3) Services reviews problem, and generated. summarize recently rocket on of reviews combustion first report both rather published instability of e the Tri comprehensive subject. - To faci.litate the exchange of information through precise description of instability, been adopted by Instabllityrf those includes specific terminology has a working in this all steady-state combustion. more area (4,5). "Combustion types of deviations from normal, flOsc111atory Burning II, refers to periodic variations of the cQmbustlon chamber pressure the term "Lr-r-egu Lar- bur-nang" deviations course, the from the more mean refers pressure undesirable form of to erratic and and often Irregular burning is, instabilityo large of However, |
